[Leica] Split printing

[leica@olemiss.edu]

Dear Mark Rabiner,

     I don't know where your anger comes from but, the confusion about
this myth stems from logical thinking:-). In the multigrade paper, there
are two emulsion components (they are mixed rather than being in actual
layers). They are both of the same contrast. One is sensitive to blue
light only, the other is sensitized to both blue and green. There is
also a differential in sensitivity, the green component being about
twice as sensitive as the blue one.
     Low contrast images are obtained by exposing one component less
than the other, high contrast by exposing both components.  As you know,
 the filters normally used for VC printing are minus-color filters so
that the visual brightness of the image on the paper will remain high.
     There is no difference between exposing the emulsion through a
single filter or through two selective filters
     I don't mean to say that the technique is not useful. Simply that
it can not change the curve shape of the paper, which is implied by some users.
     But, if you are happy with your prints, that's all that matters. I
have been discussing  this topic off-the-list with several members such
as Joe and Ian, in a civilized manner. You are welcome to join us. With
your  34 years of experience and my 40 years of
shooting/printing/teaching,  may be we can learn to to see eye to eye.
     
Cheers,
K. Turk